Article 27
Staff may not be required to work overtime except in cases of urgency or exceptional pressure of work ; night work and all work on Sundays or public holidays shall be authorized only in accordance with the procedure laid down by the director. The total overtime which a staff member may be asked to work shall not exceed 150 hours in any six months. Overtime worked by staff in Categories A and B shall carry no right to compensation or remuneration. As provided in Annex II, overtime worked by staff in Categories C and D shall entitle them either to compensatory leave or to remuneration where the requirements of the service do not allow compensatory leave during the month following that in which the overtime was worked.